UNITED STATES
SECURITIES AND EXCHANGE COMMISION
Washington, D.C. 20549
FORM 13F
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: September 30, 1999
Check here if Amendment [ ]; Amendment Number:
This Amendment (Check only one.): [ ] is a restatement.
[ ] adds new holdings entries.
Institutional Investment Manager filing this Report:
Name: The Ayco Company, L.P.
Address: P.O. Box 8009, 855 Route 146
Clifton Park, New York 12065
13F File Number: 28-6738
The institutional investment manager filing this report and the
person by whom it is signed hereby represent that the person
signing the report is authorized to submit it, that all
information contained herein is true, correct and complete, and
that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of
this form.
Person Signing this Report on Behalf of Reporting Manager:
Name: Peter H. Heerwagen
Title: Senior Vice President - Investment Services Group
Phone: 518/373-2500
Signature, Place, and Date of Signing:
Peter H. Heerwagen Clifton Park, New York November 10, 1999
Report Type (Check only one.):
[ X] 13F HOLDINGS REPORT.
[ ] 13F NOTICE.
[ ] 13F COMBINATION REPORT.
List of Other Managers Reporting for this Manager:
NONE
I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934.
<PAGE>
FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 216
Form 13F Information Table Value Total: $1,020,216
List of Other Included Managers:
No. 13F File Number Name
NONE
<TABLE> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
FORM 13F INFORMATION TABLE
VALUE SHARES / PUT/ OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (X$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE
INTEL CORP COM 458140100 56246 738249 SH SOLE 738249
GENERAL ELECTRIC CO COM 369604103 42021 347463 SH SOLE 347463
HOME DEPOT INC COM 437076102 33906 479662 SH SOLE 479662
MICROSOFT CORP COM 594918104 31964 348137 SH SOLE 348137
*** VODAFONE AIRTOUCH PLC SPONSORED ADR 92857T107 30497 663875 SH SOLE 663875
CITIGROUP INC COM 173034109 29606 659739 SH SOLE 659739
CISCO SYS INC COM 17275R102 29165 407191 SH SOLE 407191
FEDERAL NATIONAL MORTGAGE ASSN COM 313586109 28672 435245 SH SOLE 435245
PFIZER INC COM 717081103 25700 685336 SH SOLE 685336
EMC CORP-MASS COM 268648102 22905 301375 SH SOLE 301375
AMER INTERNATIONAL GROUP INC COM 026874107 22193 252915 SH SOLE 252915
CHASE MANHATTAN CORP NEW COM 16161A108 20778 274744 SH SOLE 274744
AT&T CORP LIBERTY MEDIA GROUP COM LIB GRP A 001957208 19979 522336 SH SOLE 522336
MERCK & CO INC COM 589331107 19422 276966 SH SOLE 276966
HOUSEHOLD INTERNATIONAL INC COM 441815107 19304 470100 SH SOLE 470100
MCI WORLDCOM INC COM 98155K102 19259 283478 SH SOLE 283478
PEPSICO INC COM 713448108 18418 585844 SH SOLE 585844
TIME WARNER HOLDINGS CO COM 887315109 18267 306365 SH SOLE 306365
ENRON CORP COM 293561106 17070 426741 SH SOLE 426741
JOHNSON & JOHNSON COM 478160104 16715 177461 SH SOLE 177461
WALT DISNEY HOLDING CO COM 254687106 16128 646741 SH SOLE 646741
FIRST DATA CORP COM 319963104 16016 366072 SH SOLE 366072
XEROX CORP COM 984121103 15560 378365 SH SOLE 378365
GILLETTE CO COM 375766102 15290 407725 SH SOLE 407725
BANK OF AMERICA CORP COM 066050105 14668 253993 SH SOLE 253993
TEXAS INSTRUMENTS INC COM 882508104 14203 151300 SH SOLE 151300
E I DU PONT DE NEMOURS & CO COM 263534109 12975 203326 SH SOLE 203326
*** ROYAL DUTCH PETROLEUM CO NY REG GLD1.25 780257804 12477 211471 SH SOLE 211471
PROCTER & GAMBLE CO COM 742718109 12535 131343 SH SOLE 131343
COCA-COLA CO COM 191216100 12621 263287 SH SOLE 263287
MARSH & MCLENNAN COS INC COM 571748102 10363 151702 SH SOLE 151702
Muniholdings Calif Insd Fd IV COM 62625F101 10000 400 SH SOLE 400
FEDERATED DEPARTMENT STOR COM 31410H101 9754 223265 SH SOLE 223265
APPLIED MATERIALS INC DEL COM 038222105 9268 108315 SH SOLE 108315
BURLINGTON NORTHERN SANTA COM 12189T104 9147 345972 SH SOLE 345972
COMPAQ COMPUTER CORP COM 204493100 8989 403998 SH SOLE 403998
BERKSHIRE HATHAWAY INC CL CL B 084670207 8958 4673 SH SOLE 4673
FORD MOTOR CO COM 345370100 8726 168418 SH SOLE 168418
MOBIL CORP COM 607059102 8809 93095 SH SOLE 93095
LOCKHEED MARTIN CORP COM 539830109 8034 249583 SH SOLE 249583
EXXON CORP COM 302290101 8041 111383 SH SOLE 111383
Muniholdings Fl Ins IV Ser A SH BEN INT 625937107 8025 321 SH SOLE 321
WARNER LAMBERT CO COM 934488107 7531 109138 SH SOLE 109138
BOEING CO COM 097023105 6768 154470 SH SOLE 154470
COMCAST CORP CL A-SPL CL A SPL 200300200 6648 166715 SH SOLE 166715
KIMBERLY CLARK CORP COM 494368103 6488 119863 SH SOLE 119863
ABBOTT LABORATORIES COM 002824100 6329 174583 SH SOLE 174583
WELLS FARGO & CO NEW COM 949740104 6361 155626 SH SOLE 155626
THERMO ELECTRON CORP COM 883556102 6294 461980 SH SOLE 461980
GENERAL MOTORS CORP COM 370442105 5169 79072 SH SOLE 79072
Muniholdings FLA Insd III SH BEN INT 62624Y101 4950 198 SH SOLE 198
AT&T CORP COM 001957109 4857 107935 SH SOLE 107935
HALLIBURTON CO HOLDINGS CO COM 406216101 4560 132182 SH SOLE 132182
WAL-MART STORES INC COM 931142103 4485 87508 SH SOLE 87508
*** TYCO INTERNATIONAL LTD COM 902124106 4361 41536 SH SOLE 41536
*** SCHLUMBERGER LTD COM 806857108 4451 76322 SH SOLE 76322
Muniholdings Fla Insd Fd COM 62624W105 4000 160 SH SOLE 160
Nuveen Mun Mkt Opportunity COM 67062W103 3950 158 SH SOLE 158
NEWELL RUBBERMAID INC COM 651192106 3979 144363 SH SOLE 144363
LUCENT TECHNOLOGIES INC COM 549463107 3885 59831 SH SOLE 59831
UNITED HEALTHCARE CORP COM 910581107 3810 88736 SH SOLE 88736
ALLSTATE CORP COM 020002101 3548 149396 SH SOLE 149396
CHUBB CORP COM 171232101 3370 66816 SH SOLE 66816
CENDANT CORP COM 151313103 3199 183465 SH SOLE 183465
COX COMMUNICATIONS INC-NEW COM 224044107 3158 73022 SH SOLE 73022
INTL BUSINESS MACHINES CORP COM 459200101 3130 25658 SH SOLE 25658
Nuveen Insd Calif Prem Income COM 67061U108 3075 123 SH SOLE 123
Morgan Stanley Dean Witter QualityQUALT MUN INCM 61745P734 3000 60 SH SOLE 60
AMERICAN EXPRESS CO COM 025816109 2956 21014 SH SOLE 21014
SCHWAB CHARLES CORP COM 025816109 2793 82140 SH SOLE 82140
Muniholdings Insd Fd Inc COM 625930102 2700 108 SH SOLE 108
AUTOMATIC DATA PROCESSING INC. COM 053015103 2620 59721 SH SOLE 59721
EMERSON ELECTRIC CO COM 291011104 2547 39948 SH SOLE 39948
BRISTOL MYERS SQUIBB CO COM 110122108 2537 35729 SH SOLE 35729
Muniholdings Insd Fd III-A- COM 62625D106 2500 100 SH SOLE 100
WALGREEN CO NEW COM 931422109 2480 100713 SH SOLE 100713
UNION PACIFIC CORP COM 907818108 2393 49793 SH SOLE 49793
Morgan Stanley Dean Witter Cal InsCA INSD MUN TR 61745P502 2350 47 SH SOLE 47
KANSAS CITY SOUTHERN INDS INC COM 485170104 2303 50000 SH SOLE 50000
PITNEY BOWES INC COM 724479100 2259 36540 SH SOLE 36540
Munivest Fund Inc Auction COM 626295109 2225 89 SH SOLE 89
Muniholdings Calif Ins III COM 62625R105 2200 88 SH SOLE 88
Morgan Stanley Dean Witter Insd MuINSD MUN TR 61745P866 2200 44 SH SOLE 44
STAPLES INC COM 855030102 2181 99115 SH SOLE 99115
GANNETT CO INC COM 364730101 2143 30617 SH SOLE 30617
Nuveen FLA Quality Income Mun COM 670978105 2125 85 SH SOLE 85
Muniholdings Calif Insd Fd Inc COM 625929104 2025 81 SH SOLE 81
Nuveen Prem Insd Mun Income Auct RCOM 670987106 2000 80 SH SOLE 80
GENERAL DYNAMICS CORP COM 369550108 1917 31337 SH SOLE 31337
MEDIAONE GROUP INC COM 58440J104 1902 26762 SH SOLE 26762
CATERPILLAR INC COM 149123101 1854 33984 SH SOLE 33984
TIMES MIRROR CO SER A NEW COM SER A 887364107 1808 25962 SH SOLE 25962
INTERNATIONAL PAPER CO COM 460146103 1759 39636 SH SOLE 39636
Nuveen Prem Incm Mun COM 67063W102 1750 70 SH SOLE 70
CONOCO INC CL B CL B 208251405 1625 62044 SH SOLE 62044
Muniholdings Fla Insd Fd III COM 625934104 1600 64 SH SOLE 64
Muniholdings New Jersey Insd Fd IICOM 62625E104 1600 64 SH SOLE 64
Muniyield Insd Fd-E 7Dy COM 62630E107 1575 63 SH SOLE 63
GOODYEAR TIRE & RUBBER CO COM 382550101 1538 30570 SH SOLE 30570
EASTMAN KODAK CO COM 277461109 1452 19018 SH SOLE 19018
NORFOLK SOUTHERN CORP COM 655844108 1448 60330 SH SOLE 60330
FEDERAL HOME LN MTG CORP COM 313400301 1422 26895 SH SOLE 26895
WACHOVIA CORP NEW COM 929771103 1221 14985 SH SOLE 14985
CHARTER ONE FINL INC COM 160903100 1216 51762 SH SOLE 51762
RAYTHEON CO CLASS A CL A 755111309 1210 26022 SH SOLE 26022
BERKSHIRE HATHAWAY INC-DEL CL A 084670108 1170 150 SH SOLE 150
SUN MICROSYSTEMS INC COM 866810104 1153 11790 SH SOLE 11790
H J HEINZ CO COM 423074103 1151 26658 SH SOLE 26658
ALLIED SIGNAL INC COM 019512102 1147 18903 SH SOLE 18903
STAFF LEASING INC COM 852381102 1133 111856 SH SOLE 111856
CHEVRON CORP COM 166751107 1088 12871 SH SOLE 12871
M & T BK CORP COM 55261F104 1022 2193 SH SOLE 2193
Nuveen Insd Qlty Mun Fd COM 67062N103 1000 40 SH SOLE 40
SBC COMMUNICATIONS INC COM 78387G103 993 19503 SH SOLE 19503
VIACOM INC CL B CL B 925524308 990 22600 SH SOLE 22600
GTE CORP COM 362320103 960 12779 SH SOLE 12779
Muniholdings Insd Fd II COM 62625A102 950 38 SH SOLE 38
Nuveen Insd Mun Opportunity Fd COM 670984103 925 37 SH SOLE 37
HEWLETT PACKARD CO COM 428236103 925 11060 SH SOLE 11060
Muniholdings NY Ins Fd Inc ser A COM 625931100 875 35 SH SOLE 35
ALZA CORP COM 022615108 961 22345 SH SOLE 22345
BELL ATLANTIC CORP COM 077853109 870 13265 SH SOLE 13265
CBS CORPORATION COM 12490K107 835 17580 SH SOLE 17580
Nuveen Calif Performance Plus 7Dy COM 67062Q106 800 32 SH SOLE 32
*** SHELL TRANS & TRADING PLC NEW YRK SH NEW 822703609 796 17600 SH SOLE 17600
Muniholdings New York Ins II COM 62624X103 750 30 SH SOLE 30
MCDONALDS CORP COM 580135101 739 17009 SH SOLE 17009
Muniholdings NJ Insd Ser A COM 62625Q107 725 29 SH SOLE 29
DELL COMPUTER CORP COM 247025109 706 16114 SH SOLE 16114
GENERAL MOTORS CORP CL H NEW CL H NEW 370442832 678 11101 SH SOLE 11101
MOTOROLA INC DE COM 620076109 661 7221 SH SOLE 7221
PERIPHONICS CORP COM 714005105 649 20000 SH SOLE 20000
AMGEN INC COM 031162100 644 7575 SH SOLE 7575
AMERITECH CORP NEW COM 030954101 628 9423 SH SOLE 9423
Muniyield Fla Insd Fd Auct COM 626298103 625 25 SH SOLE 25
Muniyield Mich Insd Fd Inc COM 62630J106 625 25 SH SOLE 25
QUALCOMM INC COM 747525103 623 3200 SH SOLE 3200
*** BP AMOCO PLC SPONS ADR SPONSORED ADR 055622104 599 10910 SH SOLE 10910
J P MORGAN & CO INC COM 616880100 587 5092 SH SOLE 5092
SCHERING PLOUGH CORP COM 806605101 582 12509 SH SOLE 12509
AMERICA ONLINE INC DEL COM 02364J104 568 5000 SH SOLE 5000
WM WRIGLEY JR CO COM 982526105 567 8350 SH SOLE 8350
Muniholdings NY Ins Fd Inc ser A COM 625932108 550 22 SH SOLE 22
Nuveen NJ Invt Qual Mun fd COM 670971100 550 22 SH SOLE 22
DELPHI AUTOMOTIVE SYSTEMS CORP COM 247126105 529 34272 SH SOLE 34272
Muniholdings New Jersey Insd COM 625936109 525 21 SH SOLE 21
Muniyield Calif Insd Fd II COM 62629L104 500 20 SH SOLE 20
Nuveen Prem Income Mun Fd Ince RemCOM 67062T100 500 20 SH SOLE 20
Nuveen PA Invt Quality Mun fd COM 670972108 500 20 SH SOLE 20
Blackrock Insd Mun 2008 COM 09247K109 500 20 SH SOLE 20
RAYTHEON CO CLASS B CL B 755111408 498 10435 SH SOLE 10435
MINNESOTA MINING & MFG CO COM 604059105 421 4504 SH SOLE 4504
KENNAMETAL INC COM 489170100 458 18335 SH SOLE 18335
ATLANTIC RICHFIELD CO DE COM 048825103 456 5148 SH SOLE 5148
CORNING INC COM 219350105 447 6561 SH SOLE 6561
VIAD CORP COM 92552R109 441 15921 SH SOLE 15921
BANK NEW YORK INC COM 064057102 430 12700 SH SOLE 12700
Nuveen Mun Advantage Fd Mun COM 67062H106 425 17 SH SOLE 17
SPRINT CORP (SERIES 1 PCS COM) PCS COM SER 1 852061506 419 5659 SH SOLE 5659
MELLON BANK CORP COM 585509102 413 12052 SH SOLE 12052
QWEST COMMUNICATIONS INTL COM 749121109 411 12350 SH SOLE 12350
MORGAN STANLEY DEAN WITTER CO COM NEW 617446448 359 3802 SH SOLE 3802
BECTON DICKINSON & CO COM 075887109 344 12126 SH SOLE 12126
CITY NATIONAL CORP COM 178566105 336 10000 SH SOLE 10000
COMPUTER ASSOCIATES INTL INC COM 204912109 335 5443 SH SOLE 5443
TEXTRON INC COM 883203101 334 4331 SH SOLE 4331
ASSOCIATES FIRST CAPITAL CORP CL A 046008108 300 8335 SH SOLE 8335
ANADARKO PETROLEUM CORP COM 032511107 326 12000 SH SOLE 12000
TEXACO INC COM 881694103 290 4801 SH SOLE 4801
OLIN CORP COM PAR $1 680665205 290 22836 SH SOLE 22836
ALCOA INC COM 013817101 289 4504 SH SOLE 4504
ETOYS INC COM 297862104 281 4100 SH SOLE 4100
Munivest Fd II Inc Auct COM 62629P105 275 11 SH SOLE 11
NEXTEL COMMUNICATIONS INC CL A CL A 65332V103 270 3500 SH SOLE 3500
MBNA CORP COM 55262L100 269 11110 SH SOLE 11110
J C PENNEY CO INC COM 708160106 267 7586 SH SOLE 7586
PREMARK INTERNATIONAL INC COM 740459102 267 5268 SH SOLE 5268
TERADYNE INC COM 880770102 266 6700 SH SOLE 6700
*** TELEFONICA S.A. SPONSORED ADR 879382208 250 5148 SH SOLE 5148
Munienhanced Fd Inc Auct Mkt COM 626243109 250 10 SH SOLE 10
Muniyield NJ Fd Inc Auct Mkt 7Day COM 62630L101 250 10 SH SOLE 10
Muniyield NY Insd Fd II Inc COM 62630P102 250 10 SH SOLE 10
Nuveen Fla Invt Qual COM 670970102 250 10 SH SOLE 10
Nuveen Quality Income Mun Fd Ser WCOM 670977107 250 10 SH SOLE 10
PHARMACIA & UPJOHN INC COM 716941109 244 4730 SH SOLE 4730
IOMEGA CORP COM 462030107 241 63135 SH SOLE 63135
*** COTT CORP QUE COM 22163N106 238 50000 SH SOLE 50000
EATON CORP COM 278058102 232 2650 SH SOLE 2650
ORACLE CORP COM 68389X105 229 4949 SH SOLE 4949
BELLSOUTH CORP COM 079860102 224 5357 SH SOLE 5357
STATE STREET CORP COM 857477103 223 3200 SH SOLE 3200
CSX CORP COM 126408103 215 5185 SH SOLE 5185
HASBRO INC COM 418056107 214 10000 SH SOLE 10000
SYSCO CORP COM 871829107 210 6480 SH SOLE 6480
PHILIP MORRIS COS INC COM 718154107 209 6098 SH SOLE 6098
BROADCOM CORP CL A CL A 111320107 207 1725 SH SOLE 1725
DAYTON HUDSON CORP COM 239753106 205 3200 SH SOLE 3200
READERS DIGEST ASSN INC CL A CL A NON VTG 755267101 205 7250 SH SOLE 7250
FLEET BOSTON CORP COM 338915101 205 5401 SH SOLE 5401
SPRINT CORP COM FON GROUP 852061100 205 3475 SH SOLE 3475
Muniyield NJ Insd Fd Inc Auct 7DayCOM 625921101 200 8 SH SOLE 8
Muniholdings Fd Inc Auction COM 62625H107 200 8 SH SOLE 8
Muniyield Mich Fd Inc COM 626300107 200 8 SH SOLE 8
Nuveen Insd prem Income COM 6706D8104 200 8 SH SOLE 8
Blackrock NJ Invt Quality Mun Tr COM 09247C107 200 8 SH SOLE 8
CROWN CASTLE INTERNATIONAL COM 228227104 182 10000 SH SOLE 10000
ARCH CHEMICALS INC COM 03937R102 172 11418 SH SOLE 11418
SELECT COMFORT CORP COM 81616X103 133 19000 SH SOLE 19000
PHYCOR INC COM 71940F100 124 31000 SH SOLE 31000
MOTIVEPOWER INDS INC COM 619454101 98 10350 SH SOLE 10350
MIDDLEBY CORP COM 596278101 92 16800 SH SOLE 16800
*** GULF CANADA RESOURCES ORD 40218L305 46 11400 SH SOLE 11400
HEARTPORT INC COM 421969106 46 10000 SH SOLE 10000
GLOBAL VACATION GROUP INC COM 37937F106 45 10400 SH SOLE 10400
CREATIVE BIOMOLECULES INC COM 225270107 38 10000 SH SOLE 10000
WTS JMAR TECHNOLOGIES INC WT EXP 051500 466212155 2 10000 SH CALL SOLE 10000
</TABLE>
